1 #include <linux/vmalloc.h>
2 #include <linux/module.h>
5 #include <linux/slab.h>
6 #include <linux/sched.h>
7 #include <asm/uaccess.h>
8 #include "oss/sound_firmware.h"
10 static int do_mod_firmware_load(const char *fn, char **fp)
17 filp = filp_open(fn, 0, 0);
20 printk(KERN_INFO "Unable to load '%s'.\n", fn);
23 l = filp->f_path.dentry->d_inode->i_size;
24 if (l <= 0 || l > 131072)
26 printk(KERN_INFO "Invalid firmware '%s'\n", fn);
27 filp_close(filp, current->files);
33 printk(KERN_INFO "Out of memory loading '%s'.\n", fn);
34 filp_close(filp, current->files);
38 if (vfs_read(filp, dp, l, &pos) != l)
40 printk(KERN_INFO "Failed to read '%s'.\n", fn);
42 filp_close(filp, current->files);
45 filp_close(filp, current->files);
51 * mod_firmware_load - load sound driver firmware
53 * @fp: return for the buffer.
55 * Load the firmware for a sound module (up to 128K) into a buffer.
56 * The buffer is returned in *fp. It is allocated with vmalloc so is
57 * virtually linear and not DMAable. The caller should free it with
58 * vfree when finished.
60 * The length of the buffer is returned on a successful load, the
61 * value zero on a failure.
63 * Caution: This API is not recommended. Firmware should be loaded via
67 int mod_firmware_load(const char *fn, char **fp)
70 mm_segment_t fs = get_fs();
73 r = do_mod_firmware_load(fn, fp);
77 EXPORT_SYMBOL(mod_firmware_load);
79 MODULE_LICENSE("GPL");